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SSC
2007
Springer
140views Cryptology» more  SSC 2007»
13 years 11 months ago
Existence of Modular Sonar Sequences of Twin-Prime Product Length
In this paper, we investigate the existence of modular sonar sequences of length v and mod v where v is a product of twin primes. For v = 3 · 5 = 15, we have found some old and ne...
Sung-Jun Yoon, Hong-Yeop Song
SSC
2007
Springer
161views Cryptology» more  SSC 2007»
13 years 11 months ago
On Attacks on Filtering Generators Using Linear Subspace Structures
Abstract. The filter generator consists of a linear feedback shift register (LFSR) and a Boolean filtering function that combines some bits from the shift register to create a ke...
Sondre Rønjom, Guang Gong, Tor Helleseth
SSC
2007
Springer
192views Cryptology» more  SSC 2007»
13 years 11 months ago
On Boolean Functions Which Are Bent and Negabent
Bent functions f : Fm 2 → F2 achieve largest distance to all linear functions. Equivalently, their spectrum with respect to the Hadamard-Walsh transform is flat (i.e. all spectr...
Matthew G. Parker, Alexander Pott
SSC
2007
Springer
126views Cryptology» more  SSC 2007»
13 years 11 months ago
Randomness and Representation of Span n Sequences
Any span n sequences can be regarded as filtering sequences. From this observation, new randomness criteria for span n sequences are proposed. It is proved that the feedback funct...
Guang Gong
SSC
2007
Springer
147views Cryptology» more  SSC 2007»
13 years 11 months ago
Remarks on a Sequence of Minimal Niven Numbers
In this short note we introduce two new sequences defined using the sum of digits in the representation of an integer in a certain base. A connection to Niven numbers is proposed ...
H. Fredricksen, E. J. Ionascu, Florian Luca, Pante...